【单选题】(2007年全国高考题)从5位同学中选派4位同学在星期五、星期六、星期日参加公益活动,每人一天.要求星期五有2人参加,星期六、星期日各有1人参加,则不同的选派方法共有.( )
【单选题】在声音的数字化过程中,量化是用来对( )划分等级,该过程会产生量化误差。
【简答题】【图片】【图片】针对表1给定的六个算法的时间复杂度T(n),从表2中选择关于T(n)的正确的递推方程,从表3中选择正确的解,并将解所对应的标号1,2,3,4,5按照算法一、二、三、四、五、六的顺序填入括号内(填写时6个数字之间不要加任何符号).
【单选题】— This is a really lively party. There is a great atmosphere, isn’t there ? —______. The hosts know how to host a party.
【单选题】— This is a really lively party. There’s a great atmosphere, isn’t there? — ________ The hosts know how to host a party.
【单选题】—This is really lively party.There's a great atmosphere,isn't there? —________.The hosts know how to host a party.(2013·山东,32)
【单选题】—This is a really lively party.There’s a great atmosphere,isn’t there? —________.The hosts know how to host a party. (2013·山东,32)
【单选题】Hosts are very often troubled about how to deal with the guests who ______.
C.
smoke in your sitting room
D.
stay in the same bedroom
【单选题】从5位同学中选派4位同学在星期五、星期六、星期日参加公益活动,每人一天,要求星期五有2人参加,星期六、星期日各有1人参加,则不同的选派方法共有( )。